KF Blank Flange

Applications

ISO-KF fittings can be used in a wide variety of applications including:
• Roughing and foreline plumbing
• Small systems
• Systems requiring frequent cleaning or modification
• Research and teaching laboratories
ISO-KF components are primarily designed for use at subatmospheric pressure. Because of the large number of elastomer seals used.

Description

The ISO-KF system is a modular, building block method ofcreating a piping system. There are several advantages in the use of ISO components. Since component dimensions are standardized, elbows,tees, crosses or valves for a given size may be interchanged. The flanges are ''sexless'' and the seal is symmetrical, so that the components are rotatable. By using ISO components, system assembly is quick and cost effective. See Figure 1 for the ISO dimensions of flange sizes 10, 16, 25, 40 and 50. These dimensions apply to ISO-KF flanges of these nominal diameters throughout this catalog.

Installation

The ISO-KF components are assembled by inserting a centering ring between the two flange faces, then securing the assembly with a flange encompassing clamp (see Figure 2).

Vacuum range

Elastomer seal: >= 1 x 10-8 Torr

Temperature range

Viton: -50°C to 200°C

Blank Flange

* Material:304/316L/Aluminium

	Model	Material		Size		A/mm		B/mm		L/mm	N.W./g
	FBB811K104	SS304		KF10		30		12.2		5	21.5
	FBB811K164	SS304		KF16		30		17.2		5	21.5
	FBB811K254	SS304		KF25		40		26.2		5	41.5
	FBB811K404	SS304		KF40		55		41.2		5	77.5
	FBB811K504	SS304		KF50		75		52.2		5	161.2
	FBB811K634	SS304		KF63		87		70		5	198.2
	FBB811K804	SS304		KF80		114		83		12	876.7
	FBB811K1004	SS304		KF100		134		102		12	1227.8
	FBB811K1604	SS304		KF160		190		153		12	2517
	FBB811K108	Alu		KF10		30		12.2		5	7.5
	FBB811K168	Alu		KF16		30		17.2		5	7.5
	FBB811K258	Alu		KF25		40		26.2		5	13
	FBB811K408	Alu		KF40		55		41.2		5	26
	FBB811K508	Alu		KF50		75		52.2		5	60